@article{3047895,
    title = "A precise measurement of the tau lepton lifetime",
    author = "Abreu, P and Adam, W and Adye, T and Agasi, E and Ajinenko, I and and Aleksan, R and Alekseev, GD and Allport, PP and Almehed, S and Alvsvaag, and SJ and Amaldi, U and Amato, S and Andreazza, A and Andrieux, ML and and Antilogus, P and Apel, WD and Arnoud, Y and Asman, B and Augustin, JE and and Augustinus, A and Baillon, P and Bambade, P and Barao, F and Barate, and R and Bardin, DY and Barker, GJ and Baroncelli, A and Barring, O and and Barrio, JA and Bartl, W and Bates, MJ and Battaglia, M and Baubillier, M and and Baudot, J and Becks, KH and Begalli, M and Beilliere, P and and Belokopytov, Y and Benvenuti, AC and Berggren, M and Bertrand, D and and Bianchi, F and Bigi, M and Bilenky, MS and Billoir, P and Bloch, D and and Blume, M and Blyth, S and Bocci, V and Bolognese, T and Bonesini, M and and Bonivento, W and Booth, PSL and Borisov, G and Bosio, C and Bosworth, S and and Botner, O and Bouquet, B and Bourdarios, C and Bowcock, TJV and and Bozzo, M and Branchini, P and Brand, KD and Brenke, T and Brenner, RA and and Bricman, C and Brillault, L and Brown, RCA and Bruckman, P and and Brunet, JM and Bugge, L and Buran, T and Burgsmueller, T and Buschmann, and P and Buys, A and Caccia, M and Calvi, M and Rozas, AJC and Camporesi, T and and Canale, V and Canepa, M and Cankocak, K and Cao, F and Carena, F and and Carrilho, P and Carroll, L and Caso, C and Gimenez, MVC and Cattai, A and and Cavallo, FR and Cerrito, L and Chabaud, V and Charpentier, P and and Chaussard, L and Chauveau, J and Checchia, P and Chelkov, GA and and Chierici, R and Chliapnikov, P and Chochula, P and Chorowicz, V and and Cindro, V and Collins, P and Contreras, JL and Contri, R and Cortina, E and and Cosme, G and Cossutti, F and Crawley, HB and Crennell, D and and Crosetti, G and Maestro, JC and Czellar, S and DahlJensen, E and Dahm, J and and Dalmagne, B and Dam, M and Damgaard, G and Dauncey, PD and and Davenport, M and DaSilva, W and Defoix, C and Deghorain, A and and DellaRicca, G and Delpierre, P and Demaria, N and DeAngelis, A and and DeBoeck, H and DeBeer, W and DeBrabandere, S and DeClercq, C and and DeLaVaissiere, C and DeLotto, B and DeMin, A and DePaula, L and and DeSaintJean, C and Dijkstra, H and DiCiaccio, L and Djama, F and and Dolbeau, J and Donszelmann, M and Doroba, K and Dracos, M and Drees, J and and Drees, KA and Dris, M and Dufour, Y and Dupont, F and Edsall, D and and Ehret, R and Eigen, G and Ekelof, T and Ekspong, G and Elsing, M and and Engel, JP and Ershaidat, N and Erzen, B and Santo, ME and Falk, E and and Fassouliotis, D and Feindt, M and Ferrer, A and Filippas, TA and and Firestone, A and Fischer, PA and Foeth, H and Fokitis, E and Fontanelli, and F and Formenti, F and Franek, B and Frenkiel, P and Fries, DC and and Frodesen, AG and Fruhwirth, R and FuldaQuenzer, F and Fuster, J and and Galloni, A and Gamba, D and Gandelman, M and Garcia, C and Garcia, J and and Gaspar, C and Gasparini, U and Gavillet, P and Gazis, EN and Gele, D and and Gerber, JP and Gerdyukov, L and Gibbs, M and Gokieli, R and Golob, B and and Gopal, G and Gorn, L and Gorski, M and Gouz, Y and Gracco, V and and Graziani, E and Grosdidier, G and Grzelak, K and Gumenyuk, S and and Gunnarsson, P and Gunther, M and Guy, J and Hahn, F and Hahn, S and and Hallgren, A and Hamacher, K and Hao, W and Harris, FJ and Hedberg, V and and Henriques, R and Hernandez, JJ and Herquet, P and Herr, H and Hessing, and TL and Higon, E and Hilke, HJ and Hill, TS and Holmgren, SO and Holt, PJ and and Holthuizen, D and Hoorelbeke, S and Houlden, M and Hrubec, J and and Huet, K and Hultqvist, K and Jackson, JN and Jacobsson, R and Jalocha, P and and Janik, R and Jarlskog, G and Jarry, P and JeanMarie, B and and Johansson, EK and Jonsson, L and Jonsson, P and Joram, C and Juillot, P and and Kaiser, M and Kapusta, F and Karafasoulis, K and Karlsson, M and and Karvelas, E and Katsanevas, S and Katsoufis, EC and Keranen, R and and Khokhlov, Y and Khomenko, BA and Khovanski, NN and King, B and Kjaer, NJ and and Klein, H and Klovning, A and Kluit, P and Koene, B and Kokkinias, P and and Koratzinos, M and Korcyl, K and Kostioukhine, V and Kourkoumelis, C and and Kouznetsov, O and Kramer, PH and Krammer, M and Kreuter, C and and Krolikowski, J and Kronkvist, I and Krumstein, Z and Krupinski, W and and Kubinec, P and Kucewicz, W and Kurvinen, K and Lacasta, C and Laktineh, and I and Lamblot, S and Lamsa, JW and Lanceri, L and Lane, DW and and Langefeld, P and Last, I and Laugier, JP and Lauhakangas, R and Leder, G and and Ledroit, F and Lefebure, V and Lesiak, T and Liko, D and Lindner, R and and Lipniacka, A and Lippi, I and Loerstad, B and Lokajicek, M and and Loken, JG and Lopez, JM and LopezFernandez, A and LopezAguera, MA and and Loukas, D and Lutz, P and Lyons, L and MacNaughton, J and Maehlum, G and and Maio, A and Malychev, V and Mandl, F and Maocun, C and Marco, J and and Marechal, B and Margoni, M and Marin, JC and Mariotti, C and Markou, A and and Maron, T and MartinezRivero, C and MartinezVidal, F and Garcia, SMI and and Matorras, F and Matteuzzi, C and Matthiae, G and Mazzucato, M and and McCubbin, M and McKay, R and McNulty, R and Medbo, J and Meroni, C and and Meyer, S and Meyer, WT and Miagkov, A and Michelotto, M and Migliore, E and and Mirabito, L and Mitaroff, WA and Mjoernmark, U and Moa, T and and Moeller, R and Moenig, K and Monge, MR and Morettini, P and Mueller, H and and Mundim, LM and Murray, WJ and Muryn, B and Myatt, G and Naraghi, F and and Navarria, FL and Navas, S and Negri, P and Nemecek, S and Neumann, W and and Nicolaidou, R and Nielsen, BS and Nieuwenhuizen, M and Nikolaenko, V and and Niss, P and Nomerotski, A and Normand, A and OberschulteBeckmann, W and and Obraztsov, V and Olshevski, AG and Onofre, A and Orava, R and and Osterberg, K and Ouraou, A and Paganini, P and Paganoni, M and Pages, P and and Palka, H and Papadopoulou, TD and Papageorgiou, K and Pape, L and and Parkes, C and Parodi, F and Passeri, A and Pegoraro, M and Peralta, L and and Pernegger, H and Pernicka, M and Perrotta, A and Petridou, C and and Petrolini, A and Petrovyck, M and Phillips, HT and Piana, G and Pierre, and F and Pimenta, M and Pindo, M and Plaszczynski, S and Podobrin, O and and Pol, ME and Polok, G and Poropat, P and Pozdniakov, V and Prest, M and and Privitera, P and Pukhaeva, N and Radojicic, D and Ragazzi, S and and Rahmani, H and Rames, J and Ratoff, PN and Read, AL and Reale, M and and Rebecchi, P and Redaelli, NG and Regler, M and Reid, D and Renton, PB and and Resvanis, LK and Richard, F and Richardson, J and Ridky, J and and Rinaudo, G and Ripp, I and Romero, A and Roncagliolo, I and Ronchese, P and and Roos, L and Rosenberg, EI and Rosso, E and Roudeau, P and Rovelli, T and and Ruckstuhl, W and RuhlmannKleider, V and Ruiz, A and Saarikko, H and and Sacquin, Y and Sadovsky, A and Sajot, G and Salt, J and Sanchez, J and and Sannino, M and Schimmelpfennig, M and Schneider, H and Schwickerath, U and and Schyns, MAE and Sciolla, G and Scuri, F and Seager, P and Sedykh, Y and and Segar, AM and Seitz, A and Sekulin, R and Shellard, RC and Siccama, and I and Siegrist, P and Simonetti, S and Simonetto, F and Sisakian, AN and and Sitar, B and Skaali, TB and Smadja, G and Smirnov, N and Smirnova, O and and Smith, GR and Solovianov, O and Sosnowski, R and SouzaSantos, D and and Spiriti, E and Sponholz, P and Squarcia, S and Stanescu, C and Stapnes, and S and Stavitski, I and Stichelbaut, F and Stocchi, A and Strauss, J and and Strub, R and Stugu, B and Szczekowski, M and Szeptycka, M and Tabarelli, and T and Tavernet, JP and Tchikilev, O and Tilquin, A and Timmermans, J and and Tkatchev, LG and Todorov, T and Toet, DZ and Tomaradze, A and Tome, B and and Tortora, L and Transtromer, G and Treille, D and Trischuk, W and and Tristram, G and Trombini, A and Troncon, C and Tsirou, A and Turluer, ML and and Tyapkin, IA and Tyndel, M and Tzamarias, S and Ueberschaer, B and and Ullaland, O and Uvarov, V and Valenti, G and Vallazza, E and and VanderVelde, C and VanApeldoorn, GW and VanDam, P and VanDoninck, WK and and VanEldik, J and Vassilopoulos, N and Vegni, G and Ventura, L and Venus, and W and Verbeure, F and Verlato, M and Vertogradov, LS and Vilanova, D and and Vincent, P and Vitale, L and Vlasov, E and Vodopyanov, AS and Vrba, V and and Wahlen, H and Walck, C and Waldner, F and Weierstall, M and and Weilhammer, P and Weiser, C and Wetherell, AM and Wicke, D and Wickens, and JH and Wielers, M and Wilkinson, GR and Williams, WSC and Winter, M and and Witek, M and Woschnagg, K and Yip, K and Yushchenko, O and Zach, F and and Zacharatou, C and Zalewska, A and Zalewski, P and Zavrtanik, D and and Zevgolatakos, E and Zimin, NI and Zito, M and Zontar, D and Zuberi, R and and Zucchelli, GC and Zumerle, G",
    journal = "PHYSICS LETTERS B",
    year = "1996",
    volume = "365",
    number = "1-4",
    pages = "448-460",
    publisher = "Elsevier",
    issn = "0370-2693",
    doi = "10.1016/0370-2693(95)01434-9",
    abstract = "The tau lepton lifetime has been measured using three different methods
with the DELPHI detector. Two measurements of one-prong decays are
combined, accounting for correlations, giving a result of tau(tau) =
291.8 +/- 3.3 (stat.) +/- 2.0(sys.) fs while the decay length
distribution of three-prong decays gives the result tau(tau) = 286.7 +/-
4.9 (stat.) +/- 3.3 (sys.) fs. Combining the results presented here with
previous DELPHI measurements, we get tau(tau) = 291.4 +/- 3.0 fs and
find that the ratio of the coupling constant for tau decay relative to
that for muon decay is 0.990 +/- 0.009, compatible with lepton
universality."
}